Results 11 to 20 of about 23,712,988 (293)

Dirichlet process mixture models for regression discontinuity designs

open access: yesStatistical Methods in Medical Research, 2022
The regression discontinuity design is a quasi-experimental design that estimates the causal effect of a treatment when its assignment is defined by a threshold for a continuous variable. The regression discontinuity design assumes that subjects with measurements within a bandwidth around the threshold belong to a common population, so that the ...
Federico Ricciardi   +2 more
openaire   +5 more sources

Bayesian Nonparametric Learning and Knowledge Transfer for Object Tracking Under Unknown Time-Varying Conditions

open access: yesFrontiers in Signal Processing, 2022
We consider the problem of a primary source tracking a moving object under time-varying and unknown noise conditions. We propose two methods that integrate sequential Bayesian filtering with transfer learning to improve tracking performance.
Omar Alotaibi   +1 more
doaj   +1 more source

A Dirichlet Process Mixture Model for Non-Ignorable Dropout [PDF]

open access: yesBayesian Analysis, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Moore, Camille M.   +3 more
openaire   +2 more sources

Extracting Overtaking Segments by Unsupervised Clustering and Predicting Nonmotorized Vehicle’s Trajectory

open access: yesJournal of Advanced Transportation, 2022
Interpretation of flexible cycling behavior has always been a tough task. It is meaningful to understand the overtaking behavior of cyclists for its threats to safety and its high frequency on shared roads.
Ailing Yin, Xiaohong Chen, Lishengsa Yue
doaj   +1 more source

Discovering key transcriptomic regulators in pancreatic ductal adenocarcinoma using Dirichlet process Gaussian mixture model

open access: yesScientific Reports, 2021
Pancreatic Ductal Adenocarcinoma (PDAC) is the most lethal type of pancreatic cancer, late detection leading to its therapeutic failure. This study aims to determine the key regulatory genes and their impacts on the disease’s progression, helping the ...
Sk Md Mosaddek Hossain   +4 more
doaj   +1 more source

Bayesian Inference for Dynamic Models with Dirichlet Process Mixtures [PDF]

open access: yes2006 9th International Conference on Information Fusion, 2006
Using Kalman techniques, it is possible to perform optimal estimation in linear Gaussian state-space models. We address here the case where the noise probability density functions are of unknown functional form. A flexible Bayesian nonparametric noise model based on mixture of Dirichlet processes is introduced.
Caron, F   +5 more
openaire   +4 more sources

A tutorial on Dirichlet process mixture modeling

open access: yesJournal of Mathematical Psychology, 2019
Bayesian nonparametric (BNP) models are becoming increasingly important in psychology, both as theoretical models of cognition and as analytic tools. However, existing tutorials tend to be at a level of abstraction largely impenetrable by non-technicians.
Li, Yuelin   +2 more
openaire   +4 more sources

Machinery Early Fault Detection Based on Dirichlet Process Mixture Model

open access: yesIEEE Access, 2019
The most commonly used single feature-based anomaly detection method for the complex machinery, such as large wind power equipment, steam turbine generator sets, and reciprocating compressors, exhibits a defect of low-alarm accuracy due to the non ...
Bo Ma   +4 more
doaj   +1 more source

Research on identification of server energy consumption characteristics via dirichlet max-margin factor analysis similarity preservation model

open access: yesFrontiers in Energy Research, 2023
Growing server energy consumption is a significant environmental issue, and mitigating it is a key technological challenge. Application-level energy minimization strategies depend on accurate modeling of energy consumption during an application’s ...
Buhua Chen   +4 more
doaj   +1 more source

Sampling from Dirichlet process mixture models with unknown concentration parameter: mixing issues in large data implementations [PDF]

open access: yes, 2014
We consider the question of Markov chain Monte Carlo sampling from a general stick-breaking Dirichlet process mixture model, with concentration parameter (Formula presented.).
Silvia Liverani   +5 more
core   +1 more source

Home - About - Disclaimer - Privacy